001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006 *
007 * Project Info: http://www.jfree.org/jfreechart/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022 * USA.
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 *
027 * -------------------
028 * TableXYDataset.java
029 * -------------------
030 * (C) Copyright 2000-2004, by Richard Atkinson and Contributors.
031 *
032 * Original Author: Richard Atkinson;
033 * Contributor(s): David Gilbert (for Object Refinery Limited);
034 *
035 * $Id: TableXYDataset.java,v 1.2.2.1 2005/10/25 21:36:51 mungady Exp $
036 *
037 * Changes
038 * -------
039 * 22-Sep-2003 : Changed to be an interface. Previous functionality moved to
040 * DefaultTableXYDataset;
041 * 16-Feb-2004 : Updated Javadocs (DG);
042 *
043 */
044
045 package org.jfree.data.xy;
046
047
048 /**
049 * A dataset containing one or more data series containing (x, y) data items,
050 * where all series in the dataset share the same set of x-values. This is a
051 * restricted form of the {@link XYDataset} interface (which allows independent
052 * x-values between series). This is used primarily by the
053 * {@link org.jfree.chart.renderer.xy.StackedXYAreaRenderer}.
054 */
055 public interface TableXYDataset extends XYDataset {
056
057 /**
058 * Returns the number of items every series.
059 *
060 * @return The item count.
061 */
062 public int getItemCount();
063
064 }